Kerry Katona 'could lose endorsements after This Morning performance'

Kerry Katona's slurred performance on ITV's This Morning could threaten her endorsement deals, her agent has warned.

Max Clifford said that he had been contacted by Iceland, the supermarket Katona advertises, and MTV, where she has a new reality show, since the shambolic interview this week.

"Iceland are worried because she is supposed to be this happy capable young mum and the interview today doesn't give that perception," he said.

The former Atomic Kitten singer and I'm A Celebrity winner slurred her words, told rambling anecdotes and appeared in a confused state during an interview, prompting host Fern Britton to ask if she was an alcoholic.

Katona and her husband, Mark Croft have insisted that her performance was the result of prescription medication, but Mr Clifford conceded that "people just don't see that and don't believe that".

"The fact is she was slurring very badly. I need to talk to sit down with her and Mark as soon as possible," he said.